光场与级联运动三能级原子作用系统的原子偶极压缩

Atomic dipole squeezing effects in the field interacting with a moving Ξ-type three-level atom

文章研究二项式光场与Ξ型运动三能级原子相互作用系统的原子偶极压缩效应,分析了光场参数、场模速度参数、参数η和光场与原子的耦合系数对原子偶极压缩效应的影响。结果表明,耦合系数对原子偶极压缩的影响不大;4个参数变化,原子偶极都出现周期性压缩,当场模速度参数p≥9.3时,原子偶极呈现周期性完全压缩;η变化,原子偶极从无压缩,到周期性压缩,到无压缩。

The atomic dipole squeezing effects in the system of the binomial state field interacting with a moving -type three-level atom are studied. The influences of the optical field parameter, the field-mode speed, the η parameter, and the optical field and atomic coupling coefficient on the atomic dipole squeezing effects are ana- lyzed. The results indicate that the influence of the optical field and atomic coupling coefficient on the atomic dipole squeezing is not noticeable. When four parameters change, periodic compression of the atomic dipole appears. As the field-mode speed parameter p ≥9. 3, the atom dipole presents complete compression periodically. As the η paramter changes, the atomic dipole experiences three changes： starting from without changes to periodic changes, and then to without changes.